/Engine/Source/Editor/UnrealEd/Public/Kismet2/BlueprintEditorUtils.h
Gets a list of function names in blueprints that implement the interface defined by the given blueprint.
static void GetImplementingBlueprintsFunctionNameList ( const [UBlueprint](API\Runtime\Engine\Engine\UBlueprint) * Blueprint, [TSet](API\Runtime\Core\Containers\TSet)< [FName](API\Runtime\Core\UObject\FName) > & FunctionNames )